How to Change Outboard Oil in a Mercury Outboard
Proper maintenance of your Mercury outboard motor ensures efficient performance and reliability when you’re out on the water. One critical aspect of this maintenance is changing the engine oil. Mercury Marine recommends changing your oil every 100 or 300 hours, or more frequently if needed based on usage and conditions.
Why Oil Changes Are Crucial
Regular oil changes provide proper lubrication for the internal components of your outboard motor, ensuring optimal performance and longevity. Neglecting this essential task could lead to reduced efficiency and costly repairs over time.
Essential Tools and Supplies
Before you begin, make sure to gather the following items:
- Socket Wrench
- Drain Pan
- Oil Filter Socket
- Oil Filter
- Funnel
- Mercury 4-Stroke Oil
- Rags
For the best results, always use genuine OEM oil and oil filters from Mercury Marine. Avoid aftermarket oil and filters, which may use substandard materials and potentially harm your engine.
Step-by-Step Instructions
Preparation
- Ensure you have all the required tools and supplies on hand.
- Watch the video tutorial above for a detailed walkthrough.
Drain the Oil
- Position a drain pan correctly beneath the oil drain plug.
- Tilt the motor as needed to allow all the oil to flow out completely.
- Once drained, securely replace the oil drain plug.
Replace the Oil Filter
- Remove the old oil filter using an oil filter socket.
- Install the new filter, ensuring it’s tightened securely.
Refill with Fresh Oil
- Use a funnel to refill the motor with Mercury 4-Stroke Oil.
- Consult your outboard owner’s manual to determine the correct amount of oil for your specific engine.
Final Steps
- Check for any oil leaks after filling.
- Run the engine briefly to ensure smooth operation.
- Recheck the oil level and top off if necessary.
Video Demonstration of How to change oil for a Mercury Outboard
Here’s the comprehensive guide to change oil for Mercury outboards of different HPs.
15-20 Hp Outboard Oil Change
APPLICABLE ENGINES:
FourStroke: I-2 333cc 15hp and 20hp
ProKicker: I-2 333cc 15hp
40-60 Hp Outboard Oil Change
APPLICABLE ENGINES:
FourStroke: I-3 747cc 40hp; I-4 995cc 40hp CT, 50hp, 50hp CT, 60hp, 60hp
75-300 Hp Outboard Oil Change
APPLICABLE ENGINES:
Verado: V-8 4.6L 250hp AMS and 300hp AMS
FourStroke: I-4 2.1L 75hp, 90hp, 90hp CT, 115hp and 115hp CT; I-4 3.0L 150hp; V-8 4.6L 250hp and 300hp; V-6 3.4L 175hp, 200hp and 225hp
Pro XS: I-4 2.1L 115hp and 115hp CT; I-4 3.0L 150hp; V-8 4.6L 200hp, 225hp, 250hp and 300hp; V-6 3.4L 175hp
SeaPro: I-4 2.1L 75hp CT, 90hp CT and 115hp CT; I-4 3.0L 150hp; V-8 4.6L 225hp, 250hp, 300hp and 300hp AMS; V-6 3.4L 200hp
Importance of Using OEM Oil
Always choose oil that is specifically designed for your outboard motor. Mercury Marine oils are formulated to meet the exact requirements of your engine, providing superior lubrication, reducing wear, and extending the life of the motor.
Where to Find Quality Oil and Filters
For high-quality Mercury, Evinrude, or Volvo oils and filters, visit our shop anytime. Our products ensure the best care for your engine, keeping it running at peak performance.
By following these steps and using the right products, you’ll maintain your Mercury outboard motor’s efficiency and reliability, ensuring many enjoyable outings on the water.